{"id":21494,"date":"2024-01-02T10:19:22","date_gmt":"2024-01-02T10:19:22","guid":{"rendered":"https:\/\/server.hk\/blog\/21494\/"},"modified":"2024-11-14T10:33:13","modified_gmt":"2024-11-14T02:33:13","slug":"how-to-fix-postgresql-error-code-hv00n-fdw_unable_to_establish_connection","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21494\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV00N &#8211; fdw_unable_to_establish_connection"},"content":{"rendered":"<h1 id=\"how-to-fix-postgresql-error-code-hv00n-fdw_unable_to_establish_connection-exMXRETJYk\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1aHV00N &#8211; fdw_unable_to_establish_connection<\/h1>\n<p>PostgreSQL \u662f\u4e00\u500b\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u7528\u65bc\u6578\u64da\u7684\u5b58\u5132\u8207\u7ba1\u7406\u3002\u7136\u800c\uff0c\u8207\u4efb\u4f55\u8edf\u4ef6\u4e00\u6a23\uff0c\u5b83\u53ef\u80fd\u6703\u906d\u9047\u932f\u8aa4\uff0c\u9032\u800c\u5e72\u64fe\u5176\u6b63\u5e38\u904b\u884c\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u662f HV00N \u932f\u8aa4\u4ee3\u78bc\uff0c\u4ea6\u7a31\u70ba &#8220;fdw_unable_to_establish_connection&#8221;\u3002\u7576 PostgreSQL \u7121\u6cd5\u8207\u5916\u90e8\u6578\u64da\u5305\u88dd\u5668\uff08FDW\uff09\u5efa\u7acb\u9023\u63a5\u6642\uff0c\u5c31\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/p>\n<h2 id=\"understanding-the-hv00n-error-code-exMXRETJYk\">\u7406\u89e3 HV00N \u932f\u8aa4\u4ee3\u78bc<\/h2>\n<p>\u7576\u60a8\u9047\u5230 HV00N \u932f\u8aa4\u4ee3\u78bc\u6642\uff0c\u9019\u610f\u5473\u8457 PostgreSQL \u7121\u6cd5\u8207\u5916\u90e8\u6578\u64da\u5305\u88dd\u5668\u5efa\u7acb\u9023\u63a5\u3002FDW \u662f PostgreSQL \u4e2d\u7684\u64f4\u5c55\uff0c\u5141\u8a31\u60a8\u8a2a\u554f\u5b58\u5132\u65bc\u5916\u90e8\u6578\u64da\u5eab\u6216\u7cfb\u7d71\u4e2d\u7684\u6578\u64da\uff0c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u5c07\u4e0d\u540c\u4f86\u6e90\u6578\u64da\u6574\u5408\u5230\u60a8\u7684 PostgreSQL \u6578\u64da\u5eab\u4e2d\u7684\u65b9\u5f0f\u3002<\/p>\n<p>HV00N \u932f\u8aa4\u4ee3\u78bc\u901a\u5e38\u662f\u7531\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u9020\u6210\u7684\uff1a<\/p>\n<ul>\n<li>FDW \u7684\u914d\u7f6e\u8a2d\u7f6e\u4e0d\u6b63\u78ba<\/li>\n<li>\u7db2\u7d61\u9023\u63a5\u554f\u984c<\/li>\n<li>\u8eab\u4efd\u9a57\u8b49\u554f\u984c<\/li>\n<li>\u9632\u706b\u7246\u6216\u5b89\u5168\u9650\u5236<\/li>\n<\/ul>\n<h2 id=\"fixing-the-hv00n-error-code-exMXRETJYk\">\u4fee\u5fa9 HV00N \u932f\u8aa4\u4ee3\u78bc<\/h2>\n<p>\u8981\u4fee\u5fa9 HV00N \u932f\u8aa4\u4ee3\u78bc\uff0c\u60a8\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n<h3 id=\"1-check-fdw-configuration-exMXRETJYk\">1. \u6aa2\u67e5 FDW \u914d\u7f6e<\/h3>\n<p>\u9996\u5148\u9a57\u8b49 FDW \u7684\u914d\u7f6e\u8a2d\u7f6e\u3002\u78ba\u4fdd\u63d0\u4f9b\u4e86\u6b63\u78ba\u7684\u9023\u63a5\u4fe1\u606f\uff0c\u4f8b\u5982\u4e3b\u6a5f\u3001\u7aef\u53e3\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002\u4ed4\u7d30\u6aa2\u67e5\u7528\u65bc\u5275\u5efa FDW \u7684 CREATE SERVER \u8a9e\u53e5\u7684\u8a9e\u6cd5\u3002<\/p>\n<h3 id=\"2-test-network-connectivity-exMXRETJYk\">2. \u6e2c\u8a66\u7db2\u7d61\u9023\u63a5<\/h3>\n<p>\u78ba\u4fdd PostgreSQL \u4f3a\u670d\u5668\u8207\u627f\u8f09\u6578\u64da\u7684\u9060\u7a0b\u4f3a\u670d\u5668\u4e4b\u9593\u6c92\u6709\u7db2\u7d61\u9023\u63a5\u554f\u984c\u3002\u4f7f\u7528 ping \u6216 telnet \u7b49\u5de5\u5177\u6e2c\u8a66\u9023\u63a5\uff0c\u4ee5\u6aa2\u67e5\u662f\u5426\u53ef\u4ee5\u5230\u9054\u9060\u7a0b\u4f3a\u670d\u5668\u3002\u5982\u679c\u5b58\u5728\u4efb\u4f55\u7db2\u7d61\u554f\u984c\uff0c\u8acb\u5728\u7e7c\u7e8c\u4e4b\u524d\u89e3\u6c7a\u5b83\u5011\u3002<\/p>\n<h3 id=\"3-verify-authentication-exMXRETJYk\">3. \u9a57\u8b49\u8eab\u4efd\u9a57\u8b49<\/h3>\n<p>\u6aa2\u67e5\u70ba FDW \u63d0\u4f9b\u7684\u8eab\u4efd\u9a57\u8b49\u6191\u8b49\u662f\u5426\u6b63\u78ba\u3002\u78ba\u4fdd\u7528\u6236\u540d\u548c\u5bc6\u78bc\u7684\u6e96\u78ba\u6027\uff0c\u4e26\u5177\u5099\u8a2a\u554f\u9060\u7a0b\u6578\u64da\u6240\u9700\u7684\u6b0a\u9650\u3002\u5982\u679c\u6191\u8b49\u4e0d\u6b63\u78ba\uff0c\u8acb\u76f8\u61c9\u66f4\u65b0\u3002<\/p>\n<h3 id=\"4-check-firewall-and-security-restrictions-exMXRETJYk\">4. \u6aa2\u67e5\u9632\u706b\u7246\u548c\u5b89\u5168\u9650\u5236<\/h3>\n<p> PostgreSQL \u4f3a\u670d\u5668\u6216\u9060\u7a0b\u4f3a\u670d\u5668\u4e0a\u7684\u9632\u706b\u7246\u6216\u5b89\u5168\u9650\u5236\u53ef\u80fd\u6703\u963b\u6b62\u5efa\u7acb\u9023\u63a5\u3002\u8acb\u78ba\u4fdd\u6240\u9700\u7aef\u53e3\u5df2\u958b\u653e\uff0c\u4e26\u6aa2\u67e5\u662f\u5426\u6709\u9632\u706b\u7246\u898f\u5247\u963b\u7919\u4e86\u9023\u63a5\u3002\u8aee\u8a62\u60a8\u7684\u7db2\u7d61\u7ba1\u7406\u54e1\u6216\u4e3b\u6a5f\u63d0\u4f9b\u5546\uff0c\u4ee5\u89e3\u6c7a\u4efb\u4f55\u8207\u9632\u706b\u7246\u6216\u5b89\u5168\u76f8\u95dc\u7684\u554f\u984c\u3002<\/p>\n<h2 id=\"summary-exMXRETJYk\">\u7e3d\u7d50<\/h2>\n<p>HV00N \u932f\u8aa4\u4ee3\u78bc\uff0c\u5373 &#8220;fdw_unable_to_establish_connection&#8221;\uff0c\u767c\u751f\u5728 PostgreSQL \u7121\u6cd5\u8207\u5916\u90e8\u6578\u64da\u5305\u88dd\u5668\u5efa\u7acb\u9023\u63a5\u6642\u3002\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u60a8\u61c9\u6aa2\u67e5 FDW \u914d\u7f6e\u3001\u6e2c\u8a66\u7db2\u7d61\u9023\u63a5\u3001\u9a57\u8b49\u8eab\u4efd\u9a57\u8b49\u6191\u8b49\uff0c\u4e26\u78ba\u4fdd\u6c92\u6709\u9632\u706b\u7246\u6216\u5b89\u5168\u9650\u5236\u963b\u7919\u9023\u63a5\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9047\u5230 HV00N \u932f\u8aa4\u4ee3\u78bc\u6216\u5176\u4ed6\u8207 PostgreSQL \u76f8\u95dc\u7684\u554f\u984c\uff0c\u8003\u616e\u806f\u7e6b\u53ef\u9760\u7684 VPS \u4e3b\u6a5f\u63d0\u4f9b\u5546\uff0c\u5982 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002\u4ed6\u5011\u63d0\u4f9b\u5353\u8d8a\u7684 VPS \u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u5e6b\u52a9\u60a8\u512a\u5316 PostgreSQL \u6578\u64da\u5eab\u6027\u80fd\u4e26\u89e3\u6c7a\u53ef\u80fd\u9047\u5230\u7684\u4efb\u4f55\u932f\u8aa4\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4fee\u5fa9 PostgreSQL &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21494","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21494","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=21494"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21494\/revisions"}],"predecessor-version":[{"id":23972,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21494\/revisions\/23972"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21494"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}